Search Results for "ruby-3x3-performance-0d1952fe-df30-4e72-8177-022006450ea6"

Lessons

oEmbed Client From Scratch

Jan 26, 2026 Pro

oEmbed is an awesome API standard for embedding content from websites. We can build an oEmbed client in Ruby from scratch with just a few lines of code.

11m

Ruby's Tap Method

Jan 05, 2026 Pro

The tap method in Ruby feels strange at first, but is one of my favorite tools for writing clean code. It can help eliminate local variables and make chaining things together super easy.

Using extend self inside a Ruby module makes all of its instance methods callable directly on the module itself, which is useful when you want a collection of utility-style methods without needing to instantiate an object.

20m

Parsing Ruby with Prism

Nov 03, 2025 Pro

How does Ruby run your Ruby code? In this episode we will start to dip our toes into understanding what happens along the way on your codes journey to being run.

Ruby Module Function Method

Sep 29, 2025 Pro

In this lesson, we will look at the Module#module_function method in Ruby which allows you to call methods defined in a module with the module as a receiver.

17m

Morse Code with Ruby - Part 2

Sep 08, 2025 Pro

In this lesson, we will pick up where we left off in the last video in this project and add the ability to play morse code audio.

25m

Morse Code with Ruby - Part 1

Sep 01, 2025 Pro

In this lesson, we will start building a Ruby project to translate text to morse code and vice versa.

16m

Ruby Pattern Matching

Aug 18, 2025

In this episode, we will be looking at pattern matching in Ruby which lets you check the structure of data and save parts of it into variables.

13m

Ruby Data Class

Aug 11, 2025 Pro

In this episode, we will look at Ruby's Data class which provides a way to define simple classes for value-alike objects.

Thread Safety with Mutexes in Ruby

Jul 21, 2025 Pro

Thread safety can be tricky, so let's explore what can happen if our code isn't thread safe before diving into a real-world example where a mutex plays an important role in keeping a gem thread safe.

11m

How to use Enumerable with Ruby Classes

Jun 02, 2025

Enumerable provides a suite of sorting, filtering, iterating functionality to any collection class in Ruby. It's easy to implement and use, so let's see how to use it.

13m

How to Debug Ubuntu and Debian Packages

Apr 14, 2025 Pro

We spend most of our time working with Ruby gems and node modules, but on the rare occasion, we might need to debug an Ubuntu / Debian package. In this lesson, we'll see how these packages work and debug something in the PostgreSQL package.

15m

AI Summaries in Rails with Gemini 2.0

Feb 10, 2025 Pro

AI summaries are in every application these days. In this lesson, we'll use Google's new Gemini 2.0 AI model and API to generate summaries of text that we can use in any Ruby or Rails app.

12m

Lazy Requiring Dependencies in Ruby

Feb 03, 2025 Pro

Normally, we require dependencies at the top of files, but today we'll see where and when we might want to lazily require dependencies.

Hash Fetch with Default Value

Jan 27, 2025 Pro

In this screencast, we explore Ruby's Hash#fetch method and how it handles default values. We show how providing a direct default value vs a block affects performance, especially important in Rails apps where unnecessary operations can impact speed.